Hi all, iPhone 5 app store search not working.

Try these steps:

1. Restart your device.
2. Sign out and back in to your account.
3. Try to reset your device. This won't delete your data stored on it.

• Press and hold the Sleep/Wake button
• Press and hold on the Home button
• Keep holding both buttons until the display turns off and back on with Apple logo on it.

Alternatively, you may go to Settings - General - Reset - Reset All Settings

https://support.apple.com/en-us/HT201559

You are welcome!